The GZ09S used a 4.5-litre, 635 hp Zytek ZJ458 naturally-aspirated V8 engine. It was designed for the new LMP1 regulations that were announced for the 2009 24 Hours of Le Mans.
For 2009, it was announced that Strakka Racing would be moving up into the LMP1 class for the first time, entering a GZ09S, at both that year's Le Mans Series, and the 24 Hours of Le Mans. Danny Watts gained his first pole at the 1000 km of Catalunya, the first event of the season, and the car's debut event, before eventually finishing fifth.
The team managed to finish 14th in class at Le Mans, but the Team LNT entry failed to finish due to a fuel line rupturing. ALMS team Corsa Motorsports entered a hybrid version of the GZ09S at the 2009 Northeast Grand Prix, the first time a hybrid car had ever been run in the series. The hybrid's debut proved to be a successful one: the team finished third overall, running reliably throughout the race.
For 2010, Beechdean-Mansell Motorsport and LNT were the only teams to enter the GZ09S in the Le Mans Series. Mansell took a class victory, and seventh overall, at the 1000 km of Hungaroring, a race notable for the top six places being filled solely with LMP2 cars, due to the top category's entrants experiencing a variety of misfortunes. Nigel Mansell, partnered by his sons Leo and Greg, was the only GZ09S entry in the 2010 24 Hours of Le Mans, with Nigel making his debut at the event. It would not, however, prove to be a successful one: Nigel lasted just 17 minutes, before a puncture caused him to crash heavily at Mulsanne corner.
Although still technically eligible to compete, the car was essentially made obsolete by the new LMP1 regulations for 2011, and thus did not appear again.
The GZ09S was retired at the end of the 2011 season, as it was no longer eligible to compete. Its successor, the Nissan-engined Zytek Z11SN, made its competitive debut in 2011, following the latest rule changes to the LMP regulations.
The GZ09S/2 used a 3.4-litre, 475 hp Zytek ZG348 naturally-aspirated V8 engine. It was designed for the new LMP2 regulations that were announced for the 2009 24 Hours of Le Mans, and it was an evolutionary update of the Zytek 07S. The partnership of Miguel Amaral and Olivier Pla, driving for Quifel ASM Team, took the LMP2 class title in the LMS, with 33 points, nine points ahead of the runner up.
Quifel-ASM Team entered the first two rounds of the 2011 LMS season, whilst MIK Corse entered the hybrid version of the car in the second and third rounds of the season; however, neither team had any major success. The Le Mans race would prove to be the car's last outing, as it did not appear in the 2012 24 Hours of Le Mans, and the 2012 ELMS no longer accepted LMP1-class entries.